| Title | heptagon |
|---|---|
| Text |
Merriam-Webster's Collegiate Dictionary hep·ta·gon ETYMOLOGY Greek heptagōnos heptagonal, from hepta + gōniaangle — more at -gon DATE 1570 : a polygon of seven angles and seven sides English Etymology heptagon 1570, from Gk. heptagonon, from hepta "seven" (cognate with L.septem, Goth. sibun, O.E. seofon; see seven) + gonia "angle" (see knee). Oxford Advanced Learner's Dictionary-牛津双解-OALD7 heptagon hepta·gon / 5heptE^En; NAmE -^B:n / noun (geometry 几何) a flat shape with seven straight sides and seven angles 七边形；七角形 • hept·agon·al / hep5tA^Enl / adj. Webster's Third New International Dictionary, Unabridged hep·ta·gon \ˈheptəˌgän sometimes -tə̇gən\ noun (-s) Etymology: Greek heptagōnos heptagonal, from hepta seven + -gōnos (from gōnia corner, angle) — more at -gon : a plane polygon having seven angles and therefore seven sides |
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